package com.changgou.goods.dao;

import com.changgou.pojo.Spec;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;
import java.util.Map;

public interface SpecMapper extends Mapper<Spec> {


    /**
     * 根据分类名称查询规格列表
     * @param categoryName
     * @return
     */
    @Select("SELECT `name`,`options` FROM tb_spec WHERE template_id IN ( " +
            "SELECT template_id FROM tb_category WHERE NAME=#{categoryName} " +
            ")" )
    List<Map> findListByCategoryName(@Param( "categoryName" ) String categoryName);

}
